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# ps:How many roots does equation have?

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Manager
Joined: 05 Jan 2009
Posts: 81

Kudos [?]: 160 [0], given: 2

ps:How many roots does equation have? [#permalink]

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21 Jun 2009, 14:33
00:00

Difficulty:

(N/A)

Question Stats:

100% (00:00) correct 0% (00:00) wrong based on 2 sessions

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How many roots does equation have?

2^x=x-1

(C) 2008 GMAT Club - m16#9

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Kudos [?]: 160 [0], given: 2

Director
Joined: 03 Jun 2009
Posts: 782

Kudos [?]: 900 [0], given: 56

Location: New Delhi
WE 1: 5.5 yrs in IT
Re: ps:How many roots does equation have? [#permalink]

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21 Jun 2009, 23:39
do we have any other information apart from this, like, x is integer etc ?
_________________

Kudos [?]: 900 [0], given: 56

Intern
Joined: 04 Mar 2008
Posts: 42

Kudos [?]: 3 [0], given: 6

Re: ps:How many roots does equation have? [#permalink]

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22 Jun 2009, 16:24
I can say that the equation can not have any integer root.

can you please post exact question?

Kudos [?]: 3 [0], given: 6

Senior Manager
Joined: 23 Jun 2009
Posts: 360

Kudos [?]: 134 [0], given: 80

Location: Turkey
Schools: UPenn, UMich, HKS, UCB, Chicago
Re: ps:How many roots does equation have? [#permalink]

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23 Jun 2009, 01:45
There is not any integer roots.

Kudos [?]: 134 [0], given: 80

Re: ps:How many roots does equation have?   [#permalink] 23 Jun 2009, 01:45
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